Baja California Sur, Mexico
Cabo Pulmo
Small no-take marine park on the east cape of Baja holding the only living coral reef in the Gulf of California, and the most documented case of fish biomass recovery inside a protected area anywhere.
- Bull shark
- California sea lion
- Reef
- Liveaboard
Best season
Best Aug–Dec
Minimum cert
Open Water
Water
18–28°C
Current
moderate
Season
When this place works
Year-round diving with no closure. The constraint is permit capacity: roughly two dive groups per site per day, with El Vencedor allocated by weekly lottery. Both sources agree Aug-Dec gives the warmest water (27-30C) and best visibility…
Why dive here
What this place is known for
01reefRecovered reef and fish biomass
The actual story, and the one that gets skipped. The reef was fished out before 1995 protection; research covering 1999-2009 documented a 463% increase in total fish biomass with top predators up roughly elevenfold, the largest recovery measured in any marine…
02pelagicJack schools and big-fish aggregations
Dense tornado schools of bigeye jack, plus grouper and snapper aggregations that exist here specifically because nobody is allowed to fish them. The visual density is the direct product of the protection.
03sharkLow confidenceBull sharks at El Vencedor
CONTRADICTION. Reliable at the El Vencedor wreck, but the two sources disagree sharply on when: ZuBlu gives a Feb-Jun peak, Divearoo gives bull sharks year-round with peak reliability Aug-Dec. Encoded as present year-round with no confident peak. Unbaited…
Seasonality — shouldershouldershouldershouldershouldershouldershouldershouldershouldershouldershouldershoulder
Marine life
Twelve-month species timelines
Sources contradict: ZuBlu gives Feb-Jun peak, Divearoo gives year-round with Aug-Dec most reliable. Encoded flat rather than picking a side. Unbaited. See OQ-30.
Present, though the dedicated sea lion colony diving in this region is at Los Islotes near La Paz rather than here.
Present in the Gulf; the large aggregations and breaching behaviour are a La Paz product rather than a Cabo Pulmo one. Sources do not give a Cabo Pulmo-specific season.
Occasional in winter months. The reliable Gulf of California whale shark product is in La Paz bay, and it is a snorkel activity.
Jan-Mar in the Gulf. Surface and acoustic, not an in-water product.
Conditions
What the water is like
Water temp
18–28°C
15°C — 32°C
Visibility
10–27 m
0 m — 40 m
Current
moderate
mild — strong
Thermoclines
Expected
likely
Minimum certification — Open Water
Shallow reefs at 15m suit beginners; the seamounts (El Bajo, Meros) and the standard drift profile suit intermediate and up. Water hits 18C around March, which catches people who booked Mexico expecting warm water. Park rules are strict…
Entries — boat
Logistics
How people dive it
2-7 days
scuba
Small village operations. Sites are under 10 minutes from shore, so boat time is minimal. Permits are capped at roughly two dive groups per…
1 day
scuba
Commonly sold as a day trip from Cabo San Lucas or San José del Cabo, roughly two hours by road each way on partly unpaved road.
7-8 days
scuba
Appears on Sea of Cortez itineraries, usually combined with La Paz and the northern islands.
Operators
Who to book with
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Sources & verification
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